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Patented Apr."lZ, 1898.

P. W. SCHNEIDER. SEGONDARYBATTERY.

(No Model.)

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Ioooooooo F fig NITE STATES i ATENT 0- rica FRIEDRICH WILHELM SCHNEIDER, OF TRIBERG, GERMANY, ASSIGNOR TO THE ELECTRIOITATS-GESELLSCHAFT TRIBERG, GESELLSOHAFT MIT BESOHRANKTER HAFTUNG, OF SAME PLACE.

SECONDARY BATTERY.

SPECIFICATION forming part of Letters Patent N 0. 602,172, dated April 12, 1898.

' Application June 10, 1897. Stlllfil NO- 64:0,204- (N0 11105.91.)

T0 wZZ whom it may concern:

Be it known that I, FRIEDRICH WILHELM SCHNEIDER, a subject of the Grand Duke of -Baden, residing at Triberg, in the Grand Duchy of Baden, German Empire, have invented certain new and useful Improvements in Secondary Batteries, of which the following is a full, clear, and exact specification.

My invention relates to an insulating and supporting frame especially adapted for horizontal-for instance, tubular or troughshaped-secondary batteries, the particular purpose of which is to reduce the weight of the battery as much as possible, to shape the construction of the battery more favorably, to increase the durability of the battery, and to allow of the individual electrodes being rapidly exchanged when necessary.

The accompanying drawings illustrate a mode of execution of the present frame with electrodes adjusted.

Figure l is a front View; Fig. 2, a section, and Fig. 3 a top view.

The frame consists of insulating-plates a a a? a suitably made of hard rubber and perforated, every two of which inclose a row of superposed tubular or trough-shaped electrodes b b. All of the perforated plates are mutually connected by ties or cross-bolts c, which serve at the same time as carriers for the electrodes 6 17, arranged in groups overeach In the mode of execution illustrated formed, for instance, as follows: The crossbolts 0 are screwed in or secured in some similar manner to one of the end plates dot the frame, hard-rubber tubes cl of the same width as the electrodes 12 b to be inserted being shoved over said bolts. These tubes d regulate the distance between the plate a, and

the nearest perforated plate a, which is provided with suitable perforations, is likewise shoved over the bolts 0. After this another set of hard-rubber tubes d is inserted as supports for the third plate a &c., until the apparatus has the desired size. The last plate, designated as a in the mode of execution exemplified, is secured by small nuts e, screwed on the bolts e. Between every two plates a a a a the electrodes b b, filled with active material, are now inserted and laterally connected together by a strip of lead f, serving as a conductor, in such a manner as to form vertical rows. This lateral connection of the single electrodes ,by means of a strip f is usually effected by soldering said strip to the front or head side of the electrodes.

By the application of the above-described supporting-framethe weight of the battery is considerably diminished, because Further, the present supporting-frame enables me to bring the individual electrodes much nearer to one another than heretofore ties the new insulating and supporting frame 7 is especially suited for transportable batteries, such as are chiefly used fortractional purposes. The durability of batteries made after this construction is exceptionally high.

Both the positive and negative electrodes consist of. a perforated tube 6 preferably of lead or lead composition, said'tube being filled with theactive mass of well-known composition 5 and having a central core or rod 1), also of lead or lead composition, serving" for strengthening the said tube and favoring the current conduction to the filling.

I claim- 1. In combination the supporting-frame consisting of the parallel perforated plates with the spacing-tubes d and connecting-bolts, and the electrodes consisting of the perforated tubes containing active material, saidtubes being piled in the spaces between the plates and resting 'upon the spacing-tubes, substantially as described.

. 2. In combination the supporting-frame IOO consisting of the parallel perforated plates of specification in the presence of two subscribinsulating material with the spacing-tubes cl ing witnesses.

and connecting-bolts, and the series of elec- M trode elements piled in the spaces between IRIDDRIOH WILHELM SCHMIDDR' the plates and resting upon the spacing-tubes Witnesses:

substantially as described. FRANZ CONRAD,

In testimony whereof I have signed this H. I. GREINER. 

